To determine the height of a building the pressure is measured at ground level and at...
Raise a mass 45.7 kg to height 7.7 in meters, then let it go. How much kinetic energy does it have in joules when it reaches the ground? Assume the acceleration of gravity is 9.8 m/s2.
A ball thrown straight up at ground level passes a height of 84 m in 6.3 s. The acceleration of gravity is 9.8 m/s 2 . What was its initial speed? Answer in units of m/s.... The answer is not (40.57)!!!!!
A football with a mass of 1.2 kg is kicked from ground level to a height of 10.4 m. How much work was done in Joules by the force of gravity on the football?
The pressure of compressed air is measured with a manometer filled with water. The density of water is 1000 kg/m3. If Patm = 84 kPa and the height of water in the manometer is 0.48 m, what is the gage pressure?
Density (kg/m) Enthalpy (kJ) Thermal conductivity (W/m-K) Specific heat capacity (kJ/kg K) Mass (kg) Problem 4 A barometer at the top of the mountain reads 85 kPa while one in the valley reads 101 kPa. Estimate the difference in elevation between the two locations in meters and feet. Assume an average air density of 1.2 kg/m'. Approximate answer: 4,000 fi.
3.1. The gage pressure in a pipe is measured by a manometer containing mercury (density = 13 600 kg/m^3). The top of the mercury is open to the atmosphere and the atmospheric pressure is 100 kPa. If the mercury column height is 24 cm, the gauge pressure in the pipe is? [2] O 24 kPa O 76 kPa O 32 kPa 68 kPa 124 kPa
15. The main waterline into a tall building has a pressure of 600 kPa at 5-m elevation below ground level. How much extra pressure (kPa) does a pump need to add to ensure a waterline pressure of 200 kPa at the top floor 150 m aboveground? Pextra= P =P Top floor total available g=9.81 m/s² Pa = 1000 kg/m3 150 m 000 DODO 0000 0000 Ground 700 5 m Water main Pump
Create the worksheet shown in Figure 1.35 and use it to determine the pressure at the bottom of the columns of fluid specified below. [Do not consider any imposed pressure (e.g., air pressure) on the top of the column.] a.A column of water 10 m high (SGwater =1.0) b. A column of seawater 11,000 m high. This is the depth of the Marianas Trench, the deepest spot known in the earth’s oceans (SGseawater = 1.03) (ignore the variation in water...
part 1 of 3A tennis ball is dropped from 1.79 m above the ground. It rebounds to a height of 1.01 m. With what velocity does it hit the ground? The acceleration of gravity is 9.8 m/s2. (Let down be negative.) Answer in units of m/s. part 2 of 3 With what velocity does it leave the ground? Answer in units of m/s. part 3 of 3 If the tennis ball were in contact with the ground for 0.0126 s. find the acceleration given to the...
An airplane releases a ball as it flies parallel to the ground at a height of ℎ=285 m as shown in the figure. If the ball lands on the ground a horizontal distance equal to the height ℎ from the release point, calculate the speed ? of the plane. Neglect any effects due to air resistance, and use ?=9.81 m/s2 for the acceleration due to gravity.